Company lists · Data verified August 2026

Top 25 Creative advertising agencies based in Ireland

Name: Creative advertising agencies based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 844 companies tracked

There are 844 creative advertising agencies headquartered in Ireland (RevenueBase, August 2026). RevenueBase tracks 5,529 professional contacts across them, including 1,998 with verified work emails and 413 with mobile numbers. Dublin is the largest hub.

This list covers creative advertising agencies headquartered in Ireland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

844Companies

5,529Contacts tracked

1,998Verified emails

413Mobile numbers

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The 25 largest creative advertising agencies based in Ireland

Ranked by team size

Top 25 of 844 creative advertising agencies based in Ireland, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	The Delta Group	Swords	501-1,000	406	230
2	CORE	Dublin	201-500	283	179
3	Connelly Partners	Ballsbridge	51-200	141	80
4	Droga5 Dublin	n/a	51-200	94	49
5	Oliver Ireland	Glasnevin	51-200	66	51
6	The Tenth MAN	n/a	51-200	57	39
7	Publicis Dublin	Dublin	51-200	55	43
8	Javelin Dublin	Smithfield	11-50	51	43
9	Starcom, Part Of Core	n/a	11-50	45	27
10	3 Rock	Clondalkin	51-200	40	23
11	ONE Productions	n/a	11-50	40	12
12	Dynamo	n/a	11-50	37	26
13	Legacy Communications	Dublin	11-50	36	28
14	The Public House	Dublin	11-50	36	20
15	Circulate	n/a	11-50	36	19
16	256 Content	n/a	11-50	34	10
17	Madcraft	n/a	11-50	32	17
18	Piquant	n/a	11-50	30	15
19	Mindshare Ireland	n/a	51-200	29	21
20	Bbdo Dublin	Sandymount	51-200	29	4
21	Universal Media	Dublin	11-50	29	1
22	Buymedia	Dublin	11-50	28	15
23	Hopkins Communications	n/a	11-50	24	10
24	Southern Marketing Design Media	Little Island	11-50	24	4
25	Simply Social	Dublin	11-50	24	3

Showing 25 of 844 creative advertising agencies based in Ireland

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Creative advertising agencies based in Ireland at a glance

As of Aug 28, 2026

1-10Median size (employees)

DublinLargest hub · 268 HQs

413Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

653

11-50

161

51-200

201-500

501-1,000

5,001-10,000

Creative advertising agencies by metro

Metro	Companies
Creative advertising agencies in Dublin	268
Creative advertising agencies in Cork	40
Creative advertising agencies in Galway	23
Creative advertising agencies in Limerick	13
Creative advertising agencies in Kilkenny	11
Creative advertising agencies in Dublin City	9
Creative advertising agencies in Drogheda	8

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “creative advertising agencies”, with match quality audited by blind human judging, and headquartered in Ireland.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Contact records re-verify on a rolling cadence; 2 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many creative advertising agencies are there based in Ireland?

There are 844 creative advertising agencies headquartered in Ireland as of August 2026 (RevenueBase).

What is the largest company on this list?

The Delta Group, headquartered in Swords, tops this list with the largest team on record.

Which city has the most creative advertising agencies?

Dublin leads with 268 headquartered companies, followed by Cork (40) and Galway (23).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,998 verified decision-maker contacts tracked across these 844 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph, the same data that powers RevenueBase's B2B data products and the free research portal.